Abstract: A wearable motorized device comprising a shoe bracket, which can be fastened to a shoe; wheels that are installed on the left and right sides of the shoe bracket in parallel to support the wearer's lateral skating and longitudinal walking; a driving motor for rotationally driving the wheels; and a battery pack for powering the driving motor. The wheels are not coaxially installed on the two sides of the shoe bracket to drive the wearer's longitudinal skating, but instead are installed on the two sides of the shoe bracket in parallel to drive the wearer's lateral skating; the wearer can position his/her legs apart during skating, so the skating stability is improved. Its general contour does not significantly exceed the contour of the shoe in the longitudinal direction, thus and it will not strain the wearer when ascending or descending stairs.

Abstract: A skate device includes a footwear-type boot having a sole, two side wheels positioned on opposite sides of the boot, a cross-jacket, disposed on a front region of the sole, the cross-jacket comprising a side-by-side tube with through holes for receiving screws to fix the cross-jacket to the sole, an active displacement mechanism connected to the two side wheels, the active displacement mechanism comprising a chassis with a clamped shaft that mounts a transfer bar, shaped as a flat plate, to a main joint between two lateral joints, the lateral joints having a center displaced from the main pivot joint, and shock absorbers connected to the lateral joints.

Abstract: The invention is a dry surface skiing apparatus including a leading self-steering swivel caster and trailing non self-steering swivel caster. It offers major safety improvements compared to the existing prior art. Its operation closer resembles modern carving ski and eliminates problems such as swivel caster flutter and undesirable drift effect with rotary turns. It also adds the ability to brake. Elimination of flutter is achieved by application of non self-steering trailing swivel caster which is cross connected to the leading self-steering swivel casters by a steering system. The ground friction of the wheel in the trailing swivel caster dampens the flutter. At the same time since the rear wheel turns in the opposite way to the front wheel, a carved turn is achieved in a similar manner to flexing a carving ski along its entire length. In order to facilitate braking wing like members are attached to the outer edge of each ski which allow transmitting friction of ski pole tips to the ski platform.

Abstract: A triple action roller skate steering and suspension mechanism includes upper and lower cushions clamped on either side of a skate truck, plus a third action comprising a floating cushion mechanism supporting and surrounding the pivot cup portion of a pivot joint mechanism. A pivot pin is threaded into the skate truck and can be preloaded against the pivot cup and floating cushion mechanism, thereby providing improved shock absorbing, durability and adjustability. The roller skate base plate is a unitary structure including a hollow arch for lightweight structural reinforcement.

Abstract: [Problem to be Solved] To provide a roller skate in which the inclination of a shoe can be firmly stabilized and the user can easily apply force to the ankle. [Solution] A pair of roller skates 1 provided with wheels 3 and a sole 10 rotatably holding the wheels 3. In each of a pair of the roller skates 1, the wheels 3 are provided with one front wheel 3a and one rear wheel 3b. The front wheel 3a is provided on the inside of a shoe body 2 provided over the sole 10, and the rear wheel 3b is provided on the outside of the shoe body 2.

Abstract: A roller skate having enhanced durability and stability is disclosed. Furthermore, the roller skate is particularly adapted for affixing to a person's footwear, such as sneakers, boots or the like. The skate includes a platform for supporting a skater's foot. The platform includes a toe plate and heel plate connected by an adjustable connecting assembly. A front truck is affixed to the underside of the toe plate, while a rear truck is affixed to the underside of the heel plate. The front truck includes simple bracket arms for affixing a single front wheel which is capable of rotating, but not capable of tilting about the platform's longitudinal axis. Meanwhile, the rear wheel truck is mounted to the underside of the heel plate so as to permit both tilting movement about an inclined longitudinal axis, and also rotation about a transverse axis relative to the roller skate's platform. Preferably, the roller skate includes three wheels rotatably mounted to the rear wheel truck.

Abstract: Disclosed herein are skate shoes having rollers in their soles that allow a wearer to assume the stance of a skate boarder or snow boarder. These rollers are specifically adapted to roll in a direction other than the heal-toe axis direction. As illustrated herein, only the mechanism that allows for extending and retracting the rollers from the sole of a shoe is illustrated. That is, while the upper and sole of the shoe is not illustrated, it will be appreciated that components discussed herein may be incorporated into such a shoe.

Abstract: A roller skate has a body, a brake and a sole adjusting device. The body has a front bracket, a rear bracket and a holding frame. The brake is connected to the body and has an operating device and a braking device. The operating device is connected pivotally to the body and has a mounting frame, a connecting frame and a pressing arm. The braking device is connected to the rear brake below the pressing arm and has a clamping frame and an abutting frame. The clamping frame is connected to the body. The abutting frame is connected to the rear bracket above the clamping frame. The sole adjusting frame is connected to the body and has a baseplate, a front adjusting panel and two rear adjusting panels. The baseplate is mounted on body. The adjusting panels are mounted movably on the baseplate.

Abstract: The present invention relates to a recreational and sporting device (10) comprising a foot support (12) that is mounted on a first wheel (26) such that the foot support is located below the axis of rotation of a first wheel (26). The foot cradle (12) is hingedly attached to a leg support (18) which is adapted to be attached to a user's leg. The sporting device (10) further includes a biased member (44) attached between the foot support (12) and an upper end of the leg support (18). The biasing member (44) comprising a torsional spring (98) or resiliently stretchable coiled spring (106) extending between the leg support (18) and foot support (12). The biasing member (44) being configured to urge the leg support (12) against a stop (92).

Abstract: [Problem to be Solved] To provide a roller skate in which the inclination of a shoe can be firmly stabilized and the user can easily apply force to the ankle. [Solution] A pair of roller skates 1 provided with wheels 3 and a sole 10 rotatably holding the wheels 3. In each of a pair of the roller skates 1, the wheels 3 are provided with one front wheel 3a and one rear wheel 3b. The front wheel 3a is provided on the inside of a shoe body 2 provided over the sole 10, and the rear wheel 3b is provided on the outside of the shoe body 2.

Abstract: The invention relates to road roller skates for travelling on average quality roads, comprised of a semi-rigid high-top-shoe (3) fixed to a supporting sole (4) at a height of 50 mm above the ground and fitted with angle brackets (4b and 4c) to which the rotation axis of a front wheel (1) is fixed, this front wheel having a large diameter (150 to 300 mm) and being situated to the outside of the foot next to the toe joints, and to which the rotation axis of a rear wheel (2) is fixed, this rear wheel having a medium diameter (100 to 150 mm) and being situated to the inside of the foot next to the heel. The large diameter of the wheels makes it possible to handle defects in the terrain. This arrangement confers its stability to the skate, and front and rear rubber blocks (6, 5) placed under the sole (4) can be pressed against the ground by rotating the knees.

Abstract: An exemplary wheeled footwear with a spring suspension system is provided. In one embodiment, the footwear includes an upper, a midsole positioned in a midsole region, and an outsole. The spring suspension system is positioned in the midsole region of the footwear, and includes plurality of spring members, each having a first end and a second end, a top layer operable to support at least a portion of the plurality of spring members at the first end, and a bottom layer operable to support at least a portion of the plurality of spring members at the second end. The bottom layer may include an opening or openings formed in the bottom layer that may receive at least a portion of a wheel or wheels that may be positioned below the top layer and operable for rolling.

Abstract: A pair of wheeled skate-skis comprising a chassis with two upwardly projecting forked ends, a flexible foot strap attached to a front side of the chassis, a front buckle slide fastened to an opposite front side of the chassis, two buckle slides, an adjustable binding, a front wheel assembly and a rear wheel assembly. To secure a shoe in position, the flexible foot strap is wound around the shoe and through the front and rear buckle slides and folded back to be fixed to itself by a hook-and-loop fastener. The upwardly projecting forked ends of the chassis have a plurality of axle-receiving holes for mounting wheels of various sizes and types. The chassis can be made by injection molding or compression molding or by cutting a section of fiberglass I-beam.

Abstract: A flexible skateboard may include a pair of direction casters mounted for steering rotation a twistable one piece skateboard. A center section may be made sufficiently narrower than outboard foot support areas which may be twisted by a rider to add energy for rolling motion to wheels in the casters. The center section may also be made sufficiently resistant to twist so that the skateboard may be ridden as a conventional, non-flexible skateboard.

Abstract: A wheeled skate includes a shoe cradle for receiving a user shoe, the shoe cradle having opposing first and second shoe cradle sides; a wheel mounting structure; a wheel mounting structure elevation mechanism interconnecting the shoe cradle and the wheel mounting structure including for selectively elevating and lowering the shoe cradle relative to the wheel mounting structure; and an annular wheel rotatably mounted around the wheel mounting structure.

Abstract: roller skate that is easy to attach and detach in accordance to this invention can be used by adjusting its size according to the size of user's shoes. Moreover, it can be carried around easily due to its small size. Control is facilitated since wheel exists only at the back axis. Men and women, and old and young can use it easily, and there shall be various effects such as its ability to prevent safety related accident.

Abstract: A skateboard for use on a hard surface, configured to simulate the response of a snowboard, has a support platform to which sets of wheels are mounted. The wheels have successively decreasing diameters mounted on a common axle. The wheels of successively decreasing diameter may additionally or alternately be formed of materials of successively greater frictional and compressibility characteristics.

Abstract: A multi-wheel heeling apparatus is provided. The multi-wheel heeling apparatus has a sole with a first opening formed in a heel portion of the sole and a second opening in the sole formed adjacent the first opening. The multi-wheel heeling apparatus includes a first and a second wheel assemblies. The first wheel assembly includes a first wheel mounted on a first axle, and a first mounting structure operable to support the first axle so that a portion of the first wheel resides in the first opening. The second wheel assembly includes a second wheel mounted on a second axle, and a second mounting structure operable to support the second axle so that a portion of the second wheel resides in the second opening.

Abstract: A wheel mount for a skateboard includes a base plate, a suspension body, a shock absorbing device and an axle. The skateboard has a platform with a top and bottom, and the base plate is adapted to be mounted on the bottom of the platform. The suspension body is mounted on the base plate, and the shock absorbing device is mounted between the base plate and the suspension body. A through hole is laterally defined in and extends through the suspension body. The axle extends through the through hole and is partially received in the suspension body. The axle includes two opposite ends, A wheel is rotatably mounted on each end of the axle. The axle is hollow to promote the strength of the axle.

Abstract: Improvements made to wheeled skate-skis with brakes usable on most terrains are: a hand controlled hydraulic fluid braking assembly, having a sole, resilient, curved spring, brake shoe, providing performance in comparison with the braking performance of a roadway motor vehicle; a chassis with a foot receiving body portion formed on a convex camber and made of materials which are flexible, under the weight of a person, thereby providing a spring like suspension, and with upwardly directed curved forked ends to position wheel axles higher above the ground to lower the foot receiving body portion, to thereby lower the center of gravity of the sportsperson, while moving on the wheeled skate-skis; a binding which is a combination of an outer shell of a firm material and an inner liner of soft material, which together are adjustable to fit different sizes and types of athletic shoes selected and worn by sportspersons; and a removable mud flap supportable on the binding to deflect water and/or debris thrown by a rea

Abstract: An all-terrain riding assembly comprised of a body member, including a supporting surface for feet of the user disposed between a front housing member having a rotatably mounted roller member and a rear housing member having a rotatably mounted, cylindrically-shaped roller member articulatedly mounted to the body member and including an assembly for controlling the rotational velocity of the rear roller member and thus linear velocity of the riding assembly.

Abstract: A base structure for a roller skate includes a base having at least two compartments, a bottom plate secured to the base, and a number of wheel assemblies each of which is mounted in an associated compartment. The bottom plate includes a number of blocks formed on the underside thereof, each block being received in an associated compartment. Each wheel assembly includes a pivotal seat having a first end secured to the underside of the bottom plate, a wheel seat having a first end pivotally connected to a second end of the pivotal seat, and a wheel rotatably mounted to a second end of the wheel seat. Each wheel seat may be pivoted to a storage position in the associated compartment when not in use. When skating is required, each wheel seat is pivoted to an operative position, in which each wheel seat bears against an underside of an associated block while the wheel rotatably attached to each wheel seat extends beyond the base for skating.

Abstract: A roller skate with a detachable boot includes a truck, a seat having a plate and a back, a boot, a retaining ear and a nut both securely mounted on a sole of the boot, a slot and a key hole both defined in a plate of the seat, and a connecting piece securely formed on the plate having an ear extending through the slot. By abutting the nut and the key hole together with a threading connection of the ears and the retaining ear using a screw, the boot is able to be securely engaged on the seat and is detachable from the seat, such that replacement and easy cleaning of the boot is possible.

Abstract: A roller skate shoe includes a shoe base having two receiving cavities provided thereunder at a front portion and a rear portion of the shoe base respectively, a roller arrangement fittedly received in each receiving cavity including a supporting frame securely mounted on a ceiling of the receiving cavity having a supporting member extended downwardly, a T-shaped wheel frame including a vertical wheel arm rotatably mounted on the supporting member and a horizontal wheel axle for rotatably supporting two wheels at two ends thereof, and a resilient element for applying an urging pressure against the wheel frame so as to normally retain the wheel frame slid out of the receiving cavity, and a locker means for securely locking the wheel frame in a rotatably movable manner selectively between a folded position and an unfolded position.

Abstract: A heeling apparatus includes a shoe with a unique feature in the heel that allows one to walk, run, or roll seamlessly. The appearance is that of normal footwear because of the covert wheel assembly. The stealth wheel in the heel gives one the ability to roll or slide in areas you could only walk. Heeling is a new activity that employs a unique method of rolling and requires a newly learned skill set of balance, positioning, and coordination.

Abstract: A heeling apparatus includes a shoe with a unique feature in the heel that allows one to walk, run, or roll seamlessly. The appearance is that of normal footwear because of the covert wheel assembly. The stealth wheel in the heel gives one the ability to roll or slide in areas you could only walk. Heeling is a new activity that employs a unique method of rolling and requires a newly learned skill set of balance, positioning, and coordination.

Abstract: A heeling apparatus includes a shoe with a unique feature in the heel that allows one to walk, run, or roll seamlessly. The appearance is that of normal footwear because of the covert wheel assembly. The stealth wheel in the heel gives one the ability to roll or slide in areas you could only walk. Heeling is a new activity that employs a unique method of rolling and requires a newly learned skill set of balance, positioning, and coordination.

Abstract: A heeling apparatus includes a shoe with a unique feature in the heel that allows one to walk, run, or roll seamlessly. The appearance is that of normal footwear because of the covert wheel assembly. The stealth wheel in the heel gives one the ability to roll or slide in areas you could only walk. Heeling is a new activity that employs a unique method of rolling and requires a newly learned skill set of balance, positioning, and coordination.

Abstract: A heeling apparatus includes a shoe with a unique feature in the heel that allows one to walk, run, or roll seamlessly. The appearance is that of normal footwear because of the covert wheel assembly. The stealth wheel in the heel gives one the ability to roll or slide in areas you could only walk. Heeling is a new activity that employs a unique method of rolling and requires a newly learned skill set of balance, positioning, and coordination.

Abstract: A wheel assembly for a roller skate includes a pivotal seat having a first end secured to a base of the roller skate, a wheel seat having a first end pivotally connected to a second end of the pivotal seat by a pin, and a wheel rotatably mounted to a second end of the wheel seat. A first elastic member has a first end attached to the pivotal seat and a second end attached to a mounting member on the wheel seat for biasing the wheel seat to a storage position in the base. A stopping member includes a first end mounted to the pin and a second end through which the mounting member is extended. A second elastic member is mounted around the pin for biasing a stop of the stopping member to a position for releasably engaging with the wheel seat to prevent the wheel seat from moving into the storage position in the base when the wheel seat and the wheel are extended beyond the base for skating.

Abstract: A heeling apparatus includes a shoe with a unique feature in the heel that allows one to walk, run, or roll seamlessly. The appearance is that of normal footwear because of the covert wheel assembly. The stealth wheel in the heel gives one the ability to roll or slide in areas you could only walk. Heeling is a new activity that employs a unique method of rolling and requires a newly learned skill set of balance, positioning, and coordination.

Abstract: A dual-purpose roller skate includes a sole provided with front and rear open-bottomed cavities and two wheel units separately fixedly mounted in the two cavities. Each of the wheel units mainly includes a base fixedly mounted to a top of the cavity, a wheel support pivotally connected to the base and being normally pushed downward by a first torsion spring, a wheel rotatably connected to the wheel support, and a stop arm pivotally connected at an end to one side of the base and having a bent free end normally pushed by a second torsion spring into engagement with a slot provided on the base. The bent end of the stop arm projected into the slot is also adapted to detachably engage with either a top or a lateral notch provided on the wheel support.

Abstract: A structure for supporting a wheel of a roller skate which enables a wheel coupled to an outsole of a roller skate to be supported and retracted simply and reliably is disclosed. The structure includes a frame attached to an outsole of the roller skate, which has at its bottom wall recesses and protrusions; a swing plate pivotally coupled to the frame, which has a central hole; and a bracket for rotatably supporting a wheel, which has a throughhole and a top portion to be releasably fitted in the pair of fitting recesses of the frame, and which is rotatably coupled to the swing plate by a bolt threaded in the hole of the swing plate through the throughhole of the bracket. The bracket has a pair of arms extending downward which rotatably support the wheel therebetween, and a protrusion formed at the top portion thereof which is releasably fitted in the fitting recesses of the frame. The throughhole of the bracket is formed with a concentric counterbored portion receiving a coil spring therein.

Abstract: A convertible shoe that can be used for walking or for in-line skating having an extendable and retractable wheel mechanism. The convertible shoe has cavities in the sole of the shoe capable of storing and enclosing the retracted wheel mechanism. The wheel mechanism allows the wheels to be held perpendicular to the walking surface of the sole when the wheel mechanism is extended, and parallel to the walking surface of the sole when the wheel mechanism is retracted. With the wheel mechanism extended, the convertible shoe can be used for in-line skating. With the wheel mechanism retracted and stored in the sole, the convertible shoe can be used for walking.

Abstract: A truck assembly including a housing adapted to be mounted to a skateboard or the like. An axle bracket is positioned partially in the housing and is mounted for rotation transverse to the longitudinal axis. The axle bracket includes a projecting upper end portion and a bottom end portion adapted to receive a transversely extending axle and wheel assembly. A resilient member, located at least partially in the housing, is provided and is adapted to resist transverse rotation of the axle bracket, and provide a restoring force. In addition, a wedge member is provided, having an aperture configured for receiving the projecting upper end portion of the axle bracket to establish a direct coupling therebetween. For example, the wedge member aperture and the projecting upper end portion of the axle bracket may have complementary, engaging polygonal configurations. The truck assembly may further include a rotational lock subassembly structured to prevent wheel bind during a rider effected turn of the skateboard.

Abstract: A wheel assembly for a roller skate includes a pivotal seat having a first end secured to a base of the roller skate, a wheel seat having a first end pivotally connected to a second end of the pivotal seat by a pin, and a wheel rotatably mounted to a second end of the wheel seat. A first elastic member has a first end attached to the pivotal seat and a second end attached to a mounting member on the wheel seat for biasing the wheel seat to a storage position in the base. A stopping member includes a first end mounted to the pin and a second end through which the mounting member is extended. A second elastic member is mounted around the pin for biasing a stop of the stopping member to a position for releasably engaging with the wheel seat to prevent the wheel seat from moving into the storage position in the base when the wheel seat and the wheel are extended beyond the base for skating.

Abstract: A steerable wheel assembly for an in-line skate or roller ski comprises a hollow or dish-shaped wheel (11), a wheel bearing (13), and a wheel support (14) connecting the wheel (11) to a steering pivot (16) which is substantially disposed at a distance measured radially from the rotational axis of the wheel (11) where that distance is greater than the outer radius of the wheel bearing (13) and less than the outer radius of the wheel (11). Steering of the wheel occurs as the user's weight is displaced or the chassis of the device is inclined with respect to the ground toward the desired turning direction. A chassis for an in-line skate or roller ski containing a damping and centering force mechanism which may be used to moderate the behavior of a steering mechanism or suspension mechanism comprises a structural member (21), a damper housing (17), a damper piston (19), a fluid chamber (24), and a centering force mechanism (18).